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Boothe PF, Kumar VP, Kong Y, Wang K, Levinson H, Mu D, Brown ML. Radiation Induced Skin Fibrosis (RISF): Opportunity for Angiotensin II-Dependent Intervention. Int J Mol Sci 2024; 25:8261. [PMID: 39125831 PMCID: PMC11312688 DOI: 10.3390/ijms25158261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Revised: 07/25/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024] Open
Abstract
Medical procedures, such as radiation therapy, are a vital element in treating many cancers, significantly contributing to improved survival rates. However, a common long-term complication of such exposure is radiation-induced skin fibrosis (RISF), a complex condition that poses substantial physical and psychological challenges. Notably, about 50% of patients undergoing radiation therapy may achieve long-term remission, resulting in a significant number of survivors managing the aftereffects of their treatment. This article delves into the intricate relationship between RISF, reactive oxygen species (ROS), and angiotensin II (Ang II) signaling. It proposes the underlying mechanisms and examines potential treatments for mitigating skin fibrosis. The primary goal is to offer essential insights in order to better care for and improve the quality of life of cancer survivors who face the risk of developing RISF.
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Affiliation(s)
- Patricia F. Boothe
- Department of Internal Medicine, Macon & Joan Brock Virginia Health Sciences at Old Dominion University, Norfolk, VA 23507, USA
| | - Vidya P. Kumar
- Armed Forces Radiobiology Research Institute, The Uniformed Services University of the Health Sciences, Bethesda, MD 20889, USA
| | - Yali Kong
- Department of Biomedical and Translational Sciences, Macon & Joan Brock Virginia Health Sciences at Old Dominion University, Norfolk, VA 23507, USA; (Y.K.); (D.M.)
| | - Kan Wang
- Department of Biomedical and Translational Sciences, Macon & Joan Brock Virginia Health Sciences at Old Dominion University, Norfolk, VA 23507, USA; (Y.K.); (D.M.)
| | - Howard Levinson
- The Center for Plastic Surgery at Sentara, 301 Riverview Ave. #400, Norfolk, VA 23510, USA;
| | - David Mu
- Department of Biomedical and Translational Sciences, Macon & Joan Brock Virginia Health Sciences at Old Dominion University, Norfolk, VA 23507, USA; (Y.K.); (D.M.)
- Leroy T. Canoles Jr. Cancer Research Center, Macon & Joan Brock Virginia Health Sciences at Old Dominion University, Norfolk, VA 23507, USA
| | - Milton L. Brown
- Department of Internal Medicine, Macon & Joan Brock Virginia Health Sciences at Old Dominion University, Norfolk, VA 23507, USA
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Du D, Li J, Jiang X. Evidence of a causal relationship between blood pressure and pathological scars: a bidirectional Mendelian randomization study. Front Med (Lausanne) 2024; 11:1405079. [PMID: 39114830 PMCID: PMC11303301 DOI: 10.3389/fmed.2024.1405079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 06/21/2024] [Indexed: 08/10/2024] Open
Abstract
Background Recent advancements in basic medicine and epidemiology suggest a potential influence of blood pressure on scar formation, yet the specifics of this relationship are not fully understood. This study aims to clarify the causal link between blood pressure and the development of pathological scars using Mendelian randomization (MR). Methods This study employed genetic variants closely linked to blood pressure as instrumental variables to explore the relationship between blood pressure and pathological scars. The inverse variance weighted (IVW) method was used for analysis. Results Our analysis identified a notable association where higher blood pressure was correlated with a lower risk of pathological scars. Specifically, an increase in diastolic blood pressure (odds ratio [OR] per standard deviation increase: 0.67 [95% Confidence Interval [CI], 0.49-0.99]), systolic blood pressure (OR per standard deviation increase: 0.66 [95% CI, 0.46-0.93]), and hypertension (pooled OR: 0.39 [95% CI, 0.18-0.85]) were significantly associated with a reduced risk of keloids. Similarly, a genetic predisposition to hypertension (pooled OR: 0.31 [95% CI, 0.11-0.89]) was significantly associated with a reduced risk of hypertrophic scars. Neither reverse MR analysis nor Steiger's test indicated a significant reverse causal relationship between hypertension and either keloids or hypertrophic scars. Conclusion The findings suggest a protective role of higher blood pressure against the development of pathological scars, including keloids and hypertrophic scars. However, the inconsistency observed across different MR methods warrants cautious interpretation and underscores the need for further investigation to confirm these findings.
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Affiliation(s)
- Dan Du
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- Med-X Center for Informatics, Sichuan University, Chengdu, China
| | - Jiaqi Li
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- Med-X Center for Informatics, Sichuan University, Chengdu, China
| | - Xian Jiang
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- Med-X Center for Informatics, Sichuan University, Chengdu, China
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Anggraini YE, Trisnowati N, Martien R, Danarti R. A randomised clinical trial study assessing the efficacy of 5% losartan potassium loaded in ethosomal gel to treat human keloids: a trial protocol. Trials 2024; 25:12. [PMID: 38167064 PMCID: PMC10759551 DOI: 10.1186/s13063-023-07880-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 12/15/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Keloid is a skin disorder that results from excessive fibrous tissue growth in the area of the initial trauma. Treating keloids can be challenging since the success of various treatments varies from one study to another. Triamcinolone acetonide injection, a standard treatment, can cause undesirable side effects. Meanwhile, the effectiveness of existing topical therapies for keloids is not always reliable. The pro-inflammatory, pro-proliferative, and pro-fibrotic effects of angiotensin II in human skin contribute to keloid formation. Losartan potassium, an angiotensin II blocker, has the potential to act as an anti-keloid agent. Due to the thicker skin structure of a keloid and ease of application, ethosome gel is chosen as a safe and comfortable carrier for losartan potassium, making it a good choice for treating keloids. METHODS In this randomised clinical trial, 46 adults with keloids were divided into two treatment groups. One group of 23 participants received 5% losartan potassium loaded in ethosomal gel, while the other group of 23 participants received intralesional injections of 10% triamcinolone acetonide. Over 12 weeks, changes in POSAS 3.0 scores, degree of erythema and pigmentation, surface area, thickness, and pliability of the keloids will be measured at four different times: baseline, 4 weeks, 8 weeks, and 12 weeks. Statistical analysis will be conducted using SPSS software version 24, with a significance level of p < 0.05. DISCUSSION Losartan potassium is believed to be beneficial for keloid management because it inhibits the angiotensin II receptor, which plays a role in inflammation, proliferation, and fibrosis. This study examines the efficacy of 5% losartan potassium loaded in ethosomal gel for human keloids. TRIAL REGISTRATION Clinicaltrial.gov identifier NCT05893108 . Registered on 7 June 2023.
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Affiliation(s)
- Yuni Eka Anggraini
- Faculty of Medicine, Universitas Riau, Kota Pekanbaru, Indonesia
- Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Niken Trisnowati
- Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Ronny Martien
- Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Retno Danarti
- Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia.
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Chen J, Qin S, Liu S, Zhong K, Jing Y, Wu X, Peng F, Li D, Peng C. Targeting matrix metalloproteases in diabetic wound healing. Front Immunol 2023; 14:1089001. [PMID: 36875064 PMCID: PMC9981633 DOI: 10.3389/fimmu.2023.1089001] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 02/06/2023] [Indexed: 02/19/2023] Open
Abstract
Chronic inflammation participates in the progression of multiple chronic diseases, including obesity, diabetes mellitus (DM), and DM related complications. Diabetic ulcer, characterized by chronic wounds that are recalcitrant to healing, is a serious complication of DM tremendously affecting the quality of life of patients and imposing a costly medical burden on society. Matrix metalloproteases (MMPs) are a family of zinc endopeptidases with the capacity of degrading all the components of the extracellular matrix, which play a pivotal part in healing process under various conditions including DM. During diabetic wound healing, the dynamic changes of MMPs in the serum, skin tissues, and wound fluid of patients are in connection with the degree of wound recovery, suggesting that MMPs can function as essential biomarkers for the diagnosis of diabetic ulcer. MMPs participate in various biological processes relevant to diabetic ulcer, such as ECM secretion, granulation tissue configuration, angiogenesis, collagen growth, re-epithelization, inflammatory response, as well as oxidative stress, thus, seeking and developing agents targeting MMPs has emerged as a potential way to treat diabetic ulcer. Natural products especially flavonoids, polysaccharides, alkaloids, polypeptides, and estrogens extracted from herbs, vegetables, as well as animals that have been extensively illustrated to treat diabetic ulcer through targeting MMPs-mediated signaling pathways, are discussed in this review and may contribute to the development of functional foods or drug candidates for diabetic ulcer therapy. This review highlights the regulation of MMPs in diabetic wound healing, and the potential therapeutic ability of natural products for diabetic wound healing by targeting MMPs.
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Affiliation(s)
- Junren Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Siqi Qin
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shengmeng Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Kexin Zhong
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yiqi Jing
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xuan Wu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, Macau SAR, China
| | - Fu Peng
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Department of Pharmacology, Sichuan University, Chengdu, China
- Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, China
| | - Dan Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Khodaei B, Nasimi M, Nassireslami E, Seyedpour S, Rahmati J, Haddady Abianeh S, Motavalli Khiavi F. Efficacy of Topical Losartan in Management of Mammoplasty and Abdominoplasty Scars: A Randomized, Double-Blind Clinical Trial. Aesthetic Plast Surg 2022; 46:2580-2587. [PMID: 35614156 DOI: 10.1007/s00266-022-02935-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 05/02/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Annually, millions of people suffer from skin scars' psychological and physical disadvantages. Pathologic scars prevention is challenging and requires developing feasible and effective therapeutic strategies. Regarding promising results of losartan (an angiotensin 1 receptor inhibitor) on skin scar in preclinical studies, we aimed to assess the losartan ointment's impact on surgical scars in a clinical setting. MATERIAL AND METHOD Twenty-four patients with surgical wounds were enrolled from Razi hospital's plastic and reconstructive surgery department. The patients were trained to apply ointments 14-18 days post-surgery on the determined scar side, twice a day for 6 months. Two dermatologists independently evaluated scar formation at 3 and 6-month follow-ups using the Vancouver Scar Scale (VSS) score. RESULT Twenty-four female patients with cosmetic surgeries were included. The mean VSS score of losartan-treated sides was 7.1 ± 2.06 (at month 3) and 5.21 ± 1.71 (at month 6) that significantly were different from placebo-treated sides (9.77 ± 1.55 and 8.31 ± 1.88 at 3 and 6 months, respectively) (P value < 0.001 and < 0.001, respectively, for months 3 and 6). The subset analysis demonstrated a significant improvement in height (P value < 0.001 at 3 and 6 months), pliability (P value < 0.001 at 3 and 6 months), and vascularity (P value < 0.001 at 3 and 6 months) subsets at losartan compared to placebo-treated side. Losartan ointment was well tolerated with no complication. CONCLUSION Losartan ointment successfully improved scar formation in mammoplasty and abdominoplasty patients. The losartan preventive effect should be confirmed in future large-scale studies with long-term follow-ups. LEVEL OF EVIDENCE II This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Behzad Khodaei
- Medical Biotechnology Research Center, AJA University of Medical Sciences, Etemad zadeh Street, Fatemi-Gharbi Street, Tehran, Iran
| | - Maryam Nasimi
- Department of Dermatology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Nassireslami
- Toxicology Research Center, AJA University of Medical Sciences, Tehran, Iran
- Department of Pharmacology and Toxicology, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Simin Seyedpour
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Nanomedicine Research Association (NRA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Javad Rahmati
- Department of Plastic and Reconstructive Surgery, Imam Khomeini Hospital, Tehran University of Medical Sciences Tehran, Tehran, Iran
- Department of Plastic and Reconstructive Surgery, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahriar Haddady Abianeh
- Department of Plastic and Reconstructive Surgery, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Farhad Motavalli Khiavi
- Medical Biotechnology Research Center, AJA University of Medical Sciences, Etemad zadeh Street, Fatemi-Gharbi Street, Tehran, Iran.
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Pan L, Qin H, Li C, Yang L, Li M, Kong J, Zhang G, Zhang L. Safety and efficacy of botulinum toxin type A in preventing and treating scars in animal models: A systematic review and meta-analysis. Int Wound J 2021; 19:774-781. [PMID: 34402205 PMCID: PMC9013589 DOI: 10.1111/iwj.13673] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 07/28/2021] [Indexed: 12/15/2022] Open
Abstract
Previous studies have used botulinum toxin type A (BTXA) to improve postoperative and hypertrophic scars; however, there is lack of detailed verification on the safety and effectiveness of this approach. This study aimed to evaluate the therapeutic effect of BTXA on postoperative hypertrophic scars and its influence on cytokine expression in animal models. A computerised search of different databases was performed, including PubMed, Web of Science, Scopus, Cochrane, Embase, CNKI, and Wanfang, up to 10 March 2021. A meta-analysis was performed using R 4.0.0 based on hypertrophic index, epithelialisation time, wound area, and vascular endothelial growth factor (VEGF) expression. Eleven studies were included. The meta-analysis showed a significant difference in hypertrophic index (standardised mean difference [SMD] = -2.63, 95% confidence interval [CI]: -3.50 to -1.76, P < .01), wound area (SMD = -0.54, 95% CI: -1.24 to 0.16, P < .01), and VEGF expression (SMD = -2.56, 95% CI: -3.50 to -1.62, P < .01). This study shows that BTXA is safe and effective in preventing and treating scar hypertrophy in animal models, but excessive doses of BTXA and BTXA to treat large areas should be avoided.
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Affiliation(s)
- Lingfeng Pan
- Department of Plastic Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Haiyan Qin
- Department of Plastic Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Caihong Li
- Department of Plastic Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Liehao Yang
- Department of Plastic Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Mingxi Li
- Department of Plastic Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Jiao Kong
- Department of Plastic Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Guang Zhang
- Department of Thyroid Surgery, China Japan Union Hospital of Jilin University, Changchun, China
| | - Lianbo Zhang
- Department of Plastic Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
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A Romero C, Mathew S, Wasinski B, Reed B, Brody A, Dawood R, Twiner MJ, McNaughton CD, Fridman R, Flack JM, Carretero OA, Levy PD. Angiotensin-converting enzyme inhibitors increase anti-fibrotic biomarkers in African Americans with left ventricular hypertrophy. J Clin Hypertens (Greenwich) 2021; 23:1008-1016. [PMID: 33694311 PMCID: PMC8678784 DOI: 10.1111/jch.14206] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 12/15/2020] [Accepted: 12/21/2020] [Indexed: 01/21/2023]
Abstract
Angiotensin‐converting enzyme inhibitors (ACEi) are part of the indicated treatment in hypertensive African Americans. ACEi have blood pressure‐independent effects that may make them preferred for certain patients. We aimed to evaluate the impact of ACEi on anti‐fibrotic biomarkers in African American hypertensive patients with left ventricular hypertrophy (LVH). We conducted a post hoc analysis of a randomized controlled trial in which hypertensive African American patients with LVH and vitamin D deficiency were randomized to receive intensive antihypertensive therapy plus vitamin D supplementation or placebo. We selected patients who had detectable lisinopril (lisinopril group) in plasma using liquid‐chromatography/mass spectrometry analysis and compared them to subjects who did not (comparison group) at the one‐year follow‐up. The pro‐fibrotic marker type 1 procollagen C‐terminal propeptide (PICP) and the anti‐fibrotic markers matrix metalloproteinase‐1 (MMP‐1), tissue inhibitor of metalloproteinases 1 (TIMP‐1), telopeptide of collagen type I (CITP), and N‐acetyl‐seryl‐aspartyl‐lysyl‐proline (Ac‐SDKP) peptide were measured. Sixty‐six patients were included, and the mean age was 46.2 ± 8 years. No difference was observed in the number and intensity of antihypertensive medications prescribed in each group. Patients with detectable lisinopril had lower blood pressure than those in the comparison group. The anti‐fibrotic markers Ac‐SDKP, MMP‐1, and MMP‐1/TIMP‐1 ratio were higher in patients with detectable ACEi (all p < .05). In a model adjusted for systolic blood pressure, MMP‐1/TIMP‐1 (p = .02) and Ac‐SDKP (p < .001) levels were associated with lisinopril. We conclude that ACEi increase anti‐fibrotic biomarkers in hypertensive African Americans with LVH, suggesting that they may offer added benefit over other agents in such patients.
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Affiliation(s)
- Cesar A Romero
- Hypertension and Vascular Research Division, Internal Medicine Department, Henry Ford Hospital, Detroit, MI, USA
| | - Shobi Mathew
- Department of Emergency Medicine and Integrative Biosciences Center, Wayne State University, Detroit, MI, USA
| | - Benjamin Wasinski
- Department of Emergency Medicine and Integrative Biosciences Center, Wayne State University, Detroit, MI, USA
| | - Brian Reed
- Department of Emergency Medicine and Integrative Biosciences Center, Wayne State University, Detroit, MI, USA
| | - Aaron Brody
- Department of Emergency Medicine and Integrative Biosciences Center, Wayne State University, Detroit, MI, USA
| | - Rachelle Dawood
- Department of Emergency Medicine and Integrative Biosciences Center, Wayne State University, Detroit, MI, USA
| | - Michael J Twiner
- Department of Emergency Medicine and Integrative Biosciences Center, Wayne State University, Detroit, MI, USA
| | - Candace D McNaughton
- Department of Emergency Medicine, Vanderbilt University Medical Center and Geriatric Research Education Clinical Center VA Medical Center, Nashville, TN, USA
| | - Rafael Fridman
- Department of Pathology and Oncology, Wayne State University, Detroit, MI, USA
| | - John M Flack
- School of Medicine Department of Internal Medicine, Southern Illinois University, Springfield, IL, USA
| | - Oscar A Carretero
- Hypertension and Vascular Research Division, Internal Medicine Department, Henry Ford Hospital, Detroit, MI, USA
| | - Phillip D Levy
- Department of Emergency Medicine and Integrative Biosciences Center, Wayne State University, Detroit, MI, USA
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Yang Z, Duan X, Wang X, Xu Q, Guo B, Xiang S, Jia X, He L. The effect of Q-switched 1064-nm Nd: YAG laser on skin barrier and collagen synthesis via miR-663a to regulate TGFβ1/smad3/p38MAPK pathway. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2021; 37:412-421. [PMID: 33621359 DOI: 10.1111/phpp.12673] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 02/04/2021] [Accepted: 02/20/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Our previous research found that Q-switched 1064-nm Nd: YAG laser (1064-QSNYL) induces skin collagen synthesis by activating TGFβ1/Smad3/p38MAPKs pathway. Moreover, a lot of studies shown that MicroRNAs (miRNAs) contribute to regulate collagen synthesis and skin barrier. Therefore, we intend to explore the mechanism of 1064-QSNYL on collagen synthesis and skin barrier through miRNAs. METHODS We predicted the upstream miRNAs of TGFβ1 by bioinformatics databases, and verified them through dual-luciferase reporter genes and Western blotting. The expression of collagen, skin barrier-related protein K10 and filaggrin, TIMP-1, and MMP-2 were detected by RT-qPCR and Western blotting, respectively. Moreover, we detected moisture content, elasticity value, TEWL value, SOD vitality, and hydroxyproline content to evaluate skin barrier of mice. H&E staining to observe the change of dermis thickness and inflammation and infiltration of mice skin. RESULTS The results shown that TGFβ1 was target gene of miR-663a. Moreover, we found that 1064-QSNYL activated TGFβ1/smad3/p38MAPK pathway by down-regulating the expression of miR-663a in HaCaT, HDF cells, and mice, thereby promoting expression of Collagen I, Collagen IV, TIMP-1, K10, and filaggrin and inhibiting MMP-2. Furthermore, 1064-QSNYL contributed to moisture content, elasticity, SOD vitality, and hydroxyproline content via miR-663a to activate TGFβ1/smad3/p38MAPK pathway. CONCLUSIONS In summary, this study found for the first time that 1064-QSNYL contributed to collagen synthesis and skin repair via miR-663a to regulate TGFβ1/smad3/p38MAPK pathway, thereby achieving skin rejuvenation.
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Affiliation(s)
- Zhi Yang
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xiaoxia Duan
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xue Wang
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Qi Xu
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Birun Guo
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Shunli Xiang
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xiaorong Jia
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Li He
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
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Hedayatyanfard K, Haddadi N, Ziai SA, Karim H, Niazi F, Steckelings UM, Habibi B, Modarressi A, Dehpour A. The renin‐angiotensin system in cutaneous hypertrophic scar and keloid formation. Exp Dermatol 2020; 29:902-909. [DOI: 10.1111/exd.14154] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 06/21/2020] [Accepted: 07/13/2020] [Indexed: 01/13/2023]
Affiliation(s)
- Keshvad Hedayatyanfard
- Evidence‐Based Phytotherapy and Complementary Medicine Research Center Alborz University of Medical Sciences Karaj Iran
- Cardiovascular Research Center Alborz University of Medical Sciences Karaj Iran
| | - Nazgol‐Sadat Haddadi
- Cardiovascular Research Center Alborz University of Medical Sciences Karaj Iran
- Experimental Medicine Research Center Tehran University of Medical Sciences Tehran Iran
| | - Seyed Ali Ziai
- Department of Pharmacology School of Medicine Shahid Beheshti University of Medical Sciences
| | - Hossein Karim
- Cardiovascular Research Center Alborz University of Medical Sciences Karaj Iran
| | - Feizollah Niazi
- Department of Plastic and Reconstructive Surgery Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Ulrike Muscha Steckelings
- Institute for Molecular Medicine Department of Cardiovascular and Renal Research University of Southern Denmark Odense Denmark
| | - Behnam Habibi
- Department of Pharmacology School of Medicine Shahid Beheshti University of Medical Sciences
| | - Ali Modarressi
- Department of Plastic, Reconstructive and Aesthetic Surgery Geneva University Hospitals Faculty of Medicine University of Geneva Switzerland
| | - Ahmad‐Reza Dehpour
- Experimental Medicine Research Center Tehran University of Medical Sciences Tehran Iran
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Chi N, Zheng S, Clutter E, Wang R. Silk-CNT Mediated Fibroblast Stimulation toward Chronic Wound Repair. RECENT PROGRESS IN MATERIALS 2019; 1. [PMID: 32550604 PMCID: PMC7299232 DOI: 10.21926/rpm.1904007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Background Diabetic patients suffer from chronic wounds partly due to altered function of fibroblasts. Fibroblasts of diabetic patients synthesize collagen I (COLI) at a much higher level than collagen III (COLIII), resulting in delayed tissue granulation and, consequently, a delay in the overall wound healing process. Methods We aimed to revive the matrix protein productivity of diabetic fibroblasts by employing aligned, electrically conductive and biocompatible spider silk-CNT fibers as a cell culture matrix to mediate the electrical stimulation of fibroblasts to induce cell polarization and activation. Results A 5.2 and 42.7 fold increase in COLI and COLIII production was induced in diabetic fibroblasts. The stimulated cells synthesized a substantially high level of COLIII to reduce the abnormally high COLI/COLIII ratio, and the matrix metalloproteinases expression was markedly suppressed. The protein expression profile was consistent with favorable wound healing. The modulation effect was also demonstrated in normal fibroblasts of healthy individuals, suggesting that the developed method can be utilized generally for connective tissue repair. Silkworm silk-CNT fibers corroborated similar effects on restoring the function of diabetic fibroblasts. Conclusions The approach of using an engineered biopolymer matrix to remedy dysfunctional fibroblasts of patients offers the opportunity of developing personalized cell therapy for noninvasive treatments and inspires the design of multi-functional biometrics for effective tissue regeneration.
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Affiliation(s)
- Naiwei Chi
- Department of Chemistry, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - Shuyao Zheng
- Department of Chemistry, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - Elwin Clutter
- Department of Chemistry, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - Rong Wang
- Department of Chemistry, Illinois Institute of Technology, Chicago, Illinois 60616, USA
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Oliveira SHP, Brito VGB, Frasnelli SCT, Ribeiro BDS, Ferreira MN, Queiroz DP, Beltan CT, Lara VS, Santos CF. Aliskiren Attenuates the Inflammatory Response and Wound Healing Process in Diabetic Mice With Periodontal Disease. Front Pharmacol 2019; 10:708. [PMID: 31333451 PMCID: PMC6620569 DOI: 10.3389/fphar.2019.00708] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 05/31/2019] [Indexed: 01/08/2023] Open
Abstract
The aim of this study was to characterize the role of local RAS (renin–angiotensin system) in the inflammatory response of normal (N) and diabetic (D) mice with periodontal disease (PD). Diabetes Mellitus (DM) was induced by peritoneal injection of streptozotocin in Balb/c mice. PD was induced by ligature around the first molar in both N and D, irrespective of whether they were treated with aliskiren (50 mg/kg, Alisk). Mandibles were harvested for histomorphometric analyses, and gingival tissue (GT) was collected to evaluate gene expression and extracellular matrix components (ECM). Immunohistochemical (IHC) analyses were used to localize RAS in GT. The production of C-reactive protein (CRP), IL-1β, CXCL2, and CCL8 was evaluated by enzyme-linked immunosorbent assay (ELISA). Renin was found to exacerbate the inflammation and periodontal bone loss at 14 days after PD, and Alisk inhibited this process in GT of N and D. PD increased CRP, CXCL2, CCL8, and IL-1β production in both animals. Alisk could inhibit CRP, CXCL2, and CCL8 primarily in D animals. However, only CCL8 was decreased in N animals after Alisk pretreatment. PD enhanced expression and production of AGT, ACE, AT1R, and AT2R in both N and D. AT1R expression was higher in D with PD, and AT2R expression was higher in N with PD. ACE2 and receptor Mas (MasR) expression and production was elevated in the control group of both animals. PD inhibited ACE2 in N but not in D. MasR expression was unaffected in both N and D with PD. Alisk reduced expression and production of all RAS components in GT of both animals, except for ACE2 in N. RAS staining was observed in all layers of epithelium, basal cell layer, and lamina propria and was higher in N with PD. Col1a1, Col1a2, Col3a1, and fibronectin (Fn1) were increased in both animals with PD. Alisk inhibited Col1a1 and Fn in both animals, Col1a2 was decreased only in D, while levels of Col3a1 remained unchanged in all animal groups. In conclusion, these data demonstrated the presence and functional role of local RAS in GT, exacerbating the inflammatory response, periodontal bone loss, and wound healing processes in both N and D animal groups. In addition, Alisk was able to significantly reduce gingival inflammation, excessive wound healing processes, and periodontal bone loss.
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Affiliation(s)
- Sandra Helena Penha Oliveira
- Department of Basic Sciences, School of Dentistry of Araçatuba, São Paulo State University (UNESP), São Paulo, Brazil.,Programa Multicêntrico de Pós-graduação em Ciências Fisiológicas, School of Dentistry of Araçatuba, São Paulo State University (UNESP), São Paulo, Brazil
| | - Victor Gustavo Balera Brito
- Department of Basic Sciences, School of Dentistry of Araçatuba, São Paulo State University (UNESP), São Paulo, Brazil.,Programa Multicêntrico de Pós-graduação em Ciências Fisiológicas, School of Dentistry of Araçatuba, São Paulo State University (UNESP), São Paulo, Brazil
| | - Sabrina Cruz Tfaile Frasnelli
- Department of Basic Sciences, School of Dentistry of Araçatuba, São Paulo State University (UNESP), São Paulo, Brazil
| | - Bianca da Silva Ribeiro
- Department of Basic Sciences, School of Dentistry of Araçatuba, São Paulo State University (UNESP), São Paulo, Brazil
| | - Milena Nunes Ferreira
- Department of Basic Sciences, School of Dentistry of Araçatuba, São Paulo State University (UNESP), São Paulo, Brazil
| | - Dayane Priscilla Queiroz
- Department of Basic Sciences, School of Dentistry of Araçatuba, São Paulo State University (UNESP), São Paulo, Brazil.,Programa Multicêntrico de Pós-graduação em Ciências Fisiológicas, School of Dentistry of Araçatuba, São Paulo State University (UNESP), São Paulo, Brazil
| | - Carluci Taís Beltan
- Department of Basic Sciences, School of Dentistry of Araçatuba, São Paulo State University (UNESP), São Paulo, Brazil
| | - Vanessa Soares Lara
- Department of Stomatology, Bauru School of Dentistry, University of São Paulo (USP), Bauru, Brazil
| | - Carlos Ferreira Santos
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo (USP), Bauru, Brazil
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12
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Endothelial cell-derived small extracellular vesicles suppress cutaneous wound healing through regulating fibroblasts autophagy. Clin Sci (Lond) 2019; 133:CS20190008. [PMID: 30988132 DOI: 10.1042/cs20190008] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 03/27/2019] [Accepted: 04/15/2019] [Indexed: 02/06/2023]
Abstract
Diabetic foot ulcer is a life-threatening clinical problem in diabetic patients. Endothelial cell-derived small extracellular vesicles (sEVs) are important mediators of intercellular communication in the pathogenesis of several diseases. However, the exact mechanisms of wound healing mediated by endothelial cell-derived sEVs remain unclear. sEVs were isolated from human umbilical vein endothelial cells (HUVECs) pretreated with or without advanced glycation end products (AGEs). The roles of HUVEC-derived sEVs on the biological characteristics of skin fibroblasts were investigated both in vitro and in vivo We demonstrate that sEVs derived from AGEs-pretreated HUVECs (AGEs-sEVs) could inhibit collagen synthesis by activating autophagy of human skin fibroblasts. Additionally, treatment with AGEs-sEVs could delay the wound healing process in Sprague-Dawley (SD) rats. Further analysis indicated that miR-106b-5p was up-regulated in AGEs-sEVs and importantly, in exudate-derived sEVs from patients with diabetic foot ulcer. Consequently, sEV-mediated uptake of miR-106b-5p in recipient fibroblasts reduces expression of extracellular signal-regulated kinase 1/2 (ERK1/2), resulting in fibroblasts autophagy activation and subsequent collagen degradation. Collectively, our data demonstrate that miR-106b-5p could be enriched in AGEs-sEVs, then decreases collagen synthesis and delays cutaneous wound healing by triggering fibroblasts autophagy through reducing ERK1/2 expression.
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13
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Hedayatyanfard K, Ziai SA, Niazi F, Habibi I, Habibi B, Moravvej H. Losartan ointment relieves hypertrophic scars and keloid: A pilot study. Wound Repair Regen 2018; 26:340-343. [PMID: 30099811 DOI: 10.1111/wrr.12648] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 05/07/2018] [Indexed: 01/25/2023]
Abstract
Keloid and hypertrophic scars are two types of fibrosis caused by extracellular matrix overexpression, and angiotensin II via AT1 receptor is known to play a key role in stimulation of fibrosis. A pilot placebo controlled single blind study was carried out on patients with hypertrophic scars and keloids. A total of 37 adult volunteers were randomly assigned into losartan 5% or placebo treatment groups. The treatment was performed twice a day for three months and a 6-month follow-up. The treatment was evaluated using Vancouver scar scale method. Totally, 30 participants were analyzed (Losartan ointment n = 20; placebo ointment n = 10; seven placebo volunteers left the study because they thought the treatment was not effective for them). In the losartan group, VSS scores dropped significantly (p < 0.01) both in keloid and hypertrophic scar patients. Vascularity and pliability were significantly reduced by losartan treatment (p < 0.05). It can be concluded that losartan potassium ointment (5%) can alleviate the keloid and hypertrophic scar.
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Affiliation(s)
- Keshvad Hedayatyanfard
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences
| | - Seyed Ali Ziai
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences
| | - Feizollah Niazi
- Department of Plastic and Reconstructive Surgery, Modarres Hospital, School of Medicine, Shahid Beheshti University of Medical Sciences
| | - Iman Habibi
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences
| | - Behnam Habibi
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences
| | - Hamideh Moravvej
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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14
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Siregar S, Farenia R, Sugandi S, Roesli RM. Effect of angiotensin II receptor blocker on TGF-β1, MMP-1, and collagen type I and type III concentration in New Zealand rabbit urethral stricture model. Res Rep Urol 2018; 10:127-133. [PMID: 30324094 PMCID: PMC6173177 DOI: 10.2147/rru.s151209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Urethral stricture is a disease with a high recurrence rate. Angiotensin II via AT1 receptor increases collagen formation through its effects on TGF-β1 and inhibition of collagenase activity. In this study, we evaluated the antifibrotic effect of angiotensin II receptor blocker on urethral stricture formation by creating a urethral stricture model in a male rabbit. Material and methods Thirty three male adult rabbits were separated into 3 groups (control, treatment, and sham). Group I consisted of 15 rabbits with urethral stricture that did not undergo any treatment, group II consisted of 15 rabbits with urethral stricture that were treated with a daily dose of 15 mg/kg losartan, given orally. Group III consisted of 3 rabbits with normal urethra and without any treatment. After 1, 2, and 4 weeks, the urethral tissues were collected, processed, and examined for TGF-β1, MMP-1, collagen type I, and collagen type III using enzyme-linked immunosorbent assay. Data were analyzed using 2-way analysis of variance using SPSS version 20.0. Results Urethral TGF-β1 concentration in the treatment group was significantly lower during the 2nd and 4th week of observation (p<0.0001), MMP-1 was significantly higher in the 1st, 2nd, and 4th week of observation (p<0.0001), collagen type I was significantly lower during the 2nd (p=0.001) and 4th week (p<0.0001), and collagen type III concentration was significantly lower in the 2nd and 4th week of observation (p<0.0001). Conclusion Angiotensin II receptor blocker could limit the progression of urethral stricture. The mechanism may be related to the AT1 blockage that leads to a decrease in TGF-β1 concentration, eventually resulting in lower collagen concentration due to increased MMP-1 activity.
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Affiliation(s)
- Safendra Siregar
- Urology Division, Department of Surgery, Hasan Sadikin Hospital Bandung, Faculty of Medicine Padjadjaran University, Bandung, Indonesia,
| | - Reni Farenia
- Urology Division, Department of Surgery, Hasan Sadikin Hospital Bandung, Faculty of Medicine Padjadjaran University, Bandung, Indonesia,
| | - Suwandi Sugandi
- Urology Division, Department of Surgery, Hasan Sadikin Hospital Bandung, Faculty of Medicine Padjadjaran University, Bandung, Indonesia,
| | - Rully M Roesli
- Urology Division, Department of Surgery, Hasan Sadikin Hospital Bandung, Faculty of Medicine Padjadjaran University, Bandung, Indonesia,
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15
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Mohammadi AA, Parand A, Kardeh S, Janati M, Mohammadi S. Efficacy of Topical Enalapril in Treatment of Hypertrophic Scars. World J Plast Surg 2018; 7:326-331. [PMID: 30560072 PMCID: PMC6290307 DOI: 10.29252/wjps.7.3.326] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Angiotensin II activation by angiotensin-converting enzyme (ACE) is a significant mediator in wound healing and collagen production. In this study, the effect of topical application of ACE on hypertrophic scar formation has been studied in a clinical trial. METHODS Thirty patients with hypertrophic scar and itching after treatment of 2nd or 3rd degree burns participated in this double-blinded clinical trial. Subjects had two same-degree scars on symmetrical sites of body which were randomly allocated into two groups. One side was treated with 1% enalapril ointment and the other side with placebo twice daily. During a 6-months follow-up, a scoring table for itching was completed on a daily basis by patients. Furthermore, a single surgeon measured size of scars once a month. The mean size, thickness and itching score were calculated for each scar and compared between medication and placebo-treated scars. RESULTS The mean size of scars in enalapril treated side was significantly less than scars in the placebo side. Additionally, enalapril treated scars had significantly lower itching scores compared to the placebo group. CONCLUSION Topical enalapril significantly decreases the clinical parameters of hypertrophic scar and also itching as an indirect indicative of scar improvement. Furthermore, enalapril proved to be clinically safe for patients with low incidence of adverse drug reactions and acceptable cost effectiveness.
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Affiliation(s)
- Ali Akbar Mohammadi
- Burn and Wound Healing Research Center, Division of Plastic and Reconstructive Surgery, Department of Surgery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Parand
- Burn and Wound Healing Research Center, Division of Plastic and Reconstructive Surgery, Department of Surgery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sina Kardeh
- Burn and Wound Healing Research Center, Division of Plastic and Reconstructive Surgery, Department of Surgery, Shiraz University of Medical Sciences, Shiraz, Iran.,Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran.,Cell and Molecular Medicine Student Research Group, Shiraz School of Medicine, Shiraz, Iran
| | - Mansour Janati
- Department of Cardiac Surgery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Soheil Mohammadi
- Faculty of Medicine,Tehran University of Medical Sciences, Tehran, Iran
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16
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Krishnaswamy VR, Mintz D, Sagi I. Matrix metalloproteinases: The sculptors of chronic cutaneous wounds. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2017; 1864:2220-2227. [PMID: 28797647 DOI: 10.1016/j.bbamcr.2017.08.003] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 08/01/2017] [Accepted: 08/04/2017] [Indexed: 02/07/2023]
Abstract
Cutaneous wound healing is a complex mechanism with multiple processes orchestrating harmoniously for structural and functional restoration of the damaged tissue. Chronic non-healing wounds plagued with infection create a major healthcare burden and is one of the most frustrating clinical problems. Chronic wounds are manifested by prolonged inflammation, defective re-epithelialization and haphazard remodeling. Matrix metalloproteinases (MMPs) are zinc dependent enzymes that play cardinal functions in wound healing. Understanding the pathological events mediated by MMPs during wound healing may pave way in identifying novel drug targets for chronic wounds. Here, we discuss the functions and skewed regulation of different MMPs during infection and chronic tissue repair. This review also points out the potential of MMPs and their inhibitors as therapeutic agents in treating chronic wounds during distinct phases of the wound healing. This article is part of a Special Issue entitled: Proteolysis as a Regulatory Event in Pathophysiology edited by Stefan Rose-John.
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Affiliation(s)
| | - Dvir Mintz
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Irit Sagi
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, 7610001, Israel.
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17
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Liu JH, Chen Y, Zhen Z, Ho LM, Tsang A, Yuen M, Lam K, Tse HF, Yiu KH. Relationship of biomarkers of extracellular matrix with myocardial function in Type 2 diabetes mellitus. Biomark Med 2017; 11:569-578. [PMID: 28685602 DOI: 10.2217/bmm-2017-0044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
AIM The study evaluated the relationship of extracellular matrix and renin angiotensin system with myocardial dysfunction in Type 2 diabetes mellitus. METHODS All patients underwent resting and exercise echocardiography, including conventional parameters, E/E' ratio, global longitudinal strain and diastolic function reserve index. Plasma matrix metalloproteinase-1, TIMP-1, amino-terminal propeptide of type I and type III procollagen and renin angiotensin system activity were measured. RESULTS As patients with diastolic dysfunction had a higher plasma level of TIMP-1 and propeptide of type III procollagen than those with no diastolic dysfunction. After multivariate adjustment, TIMP-1 associated with E/E' (both at rest and stress) and diastolic function reserve index. CONCLUSION TIMP-1 is independently associated with myocardial diastolic dysfunction in patients with Type 2 diabetes mellitus.
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Affiliation(s)
- Ju-Hua Liu
- Division of Cardiology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China.,Department of Medicine, Affiliated Hospital of North Sichuan Medical College, Nanchong City, Sichuan Province, China
| | - Yan Chen
- Division of Cardiology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - Zhe Zhen
- Division of Cardiology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - Lai-Ming Ho
- School of Public Health, The University of Hong Kong, Hong Kong, China
| | - Anita Tsang
- Division of Cardiology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - Michele Yuen
- Division of Endocrinology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - Karen Lam
- Division of Endocrinology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China.,Research Centre of Heart, Brain, Hormone & Healthy Aging, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Hung-Fat Tse
- Division of Cardiology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China.,Research Centre of Heart, Brain, Hormone & Healthy Aging, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Kai-Hang Yiu
- Division of Cardiology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China.,Research Centre of Heart, Brain, Hormone & Healthy Aging, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
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18
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Ahmed HH, Toson EA, El-Mezayen HA, Rashed LA, Elsherbiny ES. Role of mesenchymal stem cells versus angiotensin converting enzyme inhibitor in kidney repair. Nephrology (Carlton) 2017; 22:531-540. [PMID: 27162005 DOI: 10.1111/nep.12812] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 04/29/2016] [Accepted: 05/05/2016] [Indexed: 11/29/2022]
Abstract
AIM The current study sought to clarify the role of bone marrow derived mesenchymal stem cells (BM-MSCs) and adipose tissue derived mesenchymal stem cells (AD-MSCs) in repressing nephropathy in the experimental model. Moreover, the aim of this work was extended to compare between stem cells role and angiotensin converting enzyme inhibitor in kidney repair. METHODS Isolation and preparation of MSCs culture, flow cytometry using CD34, CD44 and CD105 cell surface markers, biochemical analyses for determination of serum creatinine, urea, transforming growth factor β (TGF-β), cystatin C (CYS-C) and urinary N-Acetyl-ß-D-Glucosaminidase (UNAG), and histopathological investigation of kidney tissue sections were performed. RESULTS The results of the present study revealed that single intravenous infusion of MSCs either derived from bone marrow or adipose tissue was able to enhance renal reparative processes through significantly decreased serum creatinine, urea, TGF-β and CYS-C levels as well as UNAG level and significantly increase glomerular filtration rate. Additionally, the histopathological investigations of kidney tissues showed that MSCs have significant regenerative effects as evidenced by the decrease in focal inflammatory cells infiltration, focal interstitial nephritis and congested glomeruli as well as degenerated tubules. CONCLUSION The current data provided distinct evidence about the favourable impact of AD-MSCs and BM-MSCs in attenuation of cyclosporine-induced nephropathy in rats through their ability to promote functional and structural kidney repair via transdifferentiation.
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Affiliation(s)
- Hanaa H Ahmed
- Hormones Department, National Research Centre, Dokki, Giza, Egypt
| | - Elshahat A Toson
- Chemistry Department, Faculty of Science, Damietta University, Damietta, Egypt
| | - Hatem A El-Mezayen
- Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt
| | - Laila A Rashed
- Department of Medical Biochemistry, Unit of Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Eslam S Elsherbiny
- Chemistry Department, Faculty of Science, Damietta University, Damietta, Egypt
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19
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Koeck I, Burkhard FC, Monastyrskaya K. Activation of common signaling pathways during remodeling of the heart and the bladder. Biochem Pharmacol 2015; 102:7-19. [PMID: 26390804 DOI: 10.1016/j.bcp.2015.09.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 09/14/2015] [Indexed: 12/12/2022]
Abstract
The heart and the urinary bladder are hollow muscular organs, which can be afflicted by pressure overload injury due to pathological conditions such as hypertension and bladder outlet obstruction. This increased outflow resistance induces hypertrophy, marked by dramatic changes in the organs' phenotype and function. The end result in both the heart and the bladder can be acute organ failure due to advanced fibrosis and the subsequent loss of contractility. There is emerging evidence that microRNAs (miRNAs) play an important role in the pathogenesis of heart failure and bladder dysfunction. MiRNAs are endogenous non-coding single-stranded RNAs, which regulate gene expression and control adaptive and maladaptive organ remodeling processes. This Review summarizes the current knowledge of molecular alterations in the heart and the bladder and highlights common signaling pathways and regulatory events. The miRNA expression analysis and experimental target validation done in the heart provide a valuable source of information for investigators working on the bladder and other organs undergoing the process of fibrotic remodeling. Aberrantly expressed miRNA are amendable to pharmacological manipulation, offering an opportunity for development of new therapies for cardiac and bladder hypertrophy and failure.
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Affiliation(s)
- Ivonne Koeck
- Urology Research Laboratory, Department Clinical Research, University of Bern, Switzerland; Graduate School for Cellular and Biomedical Sciences, University of Bern, Switzerland
| | | | - Katia Monastyrskaya
- Urology Research Laboratory, Department Clinical Research, University of Bern, Switzerland; Department of Urology, University Hospital, Bern, Switzerland.
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20
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Lu W, Li J, Ren M, Zeng Y, Zhu P, Lin L, Lin D, Hao S, Gao Q, Liang J, Yan L, Yang C. Role of the mevalonate pathway in specific CpG site demethylation on AGEs-induced MMP9 expression and activation in keratinocytes. Mol Cell Endocrinol 2015; 411:121-9. [PMID: 25916956 DOI: 10.1016/j.mce.2015.04.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 04/18/2015] [Indexed: 01/13/2023]
Abstract
BACKGROUND Advanced glycation end products (AGEs) played an important role for the development of diabetic foot. In the present study we tried to show the mevalonate pathway and the key demethylation site(s) in the MMP-9 cis-promoter to the component of MMP-9 by AGEs in keratinocyte. METHOD Human keratinocyte cell line (HaCaT) cells were exposed to AGE-BSA. The plasmid construction and site-directed mutagenesis, dual-luciferase reporter assays, immunoblot, zymography, pull down, bisulfite sequencing PCR analysis and Western blotting were applied. RESULTS The AGE-BSA could increase and more activate the MMP9 in keratinocyte. The RhoA and ROCK1 also could be activated. These affects were blocked by the simvastatin. Meanwhile, the CpG site at -562 site was largely demethylated with AGE-BSA treatment. The cis-promoter sequences with -562 bp site methylated had a lower activity change, which had a highest expression activity and was decreased by simvastatin. Moreover, site-directed mutagenesis of CpG site (-562 bp) in the recombinant plasmid pCpGL-571 brought more reduction in activity, and the activity of methylated mutation pCpGL-571 remains decreased. CONCLUSION The cis-promoter regions of MMP9 would be methylated by AGE-BSA in keratinocyte through the mevalonate pathway, especially the -562 bp site.
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Affiliation(s)
- Wan Lu
- Department of Endocrinology and Metabolism, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Jin Li
- Department of Endocrinology and Metabolism, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Meng Ren
- Department of Endocrinology and Metabolism, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Yinjuan Zeng
- Department of Endocrinology and Metabolism, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - Pin Zhu
- Department of Endocrinology and Metabolism, Guangzhou Red Cross Hospital, Medical College of Jinan University, Guangzhou 510220, China
| | - Li Lin
- Department of Endocrinology and Metabolism, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Diaozhu Lin
- Department of Endocrinology and Metabolism, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Shaoyun Hao
- Department of Endocrinology and Metabolism, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Qi Gao
- Department of Endocrinology and Metabolism, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Junqiang Liang
- Department of Endocrinology and Metabolism, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Li Yan
- Department of Endocrinology and Metabolism, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.
| | - Chuan Yang
- Department of Endocrinology and Metabolism, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.
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21
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Kamber M, Papalazarou V, Rouni G, Papageorgopoulou E, Papalois A, Kostourou V. Angiotensin II inhibitor facilitates epidermal wound regeneration in diabetic mice. Front Physiol 2015; 6:170. [PMID: 26106332 PMCID: PMC4460301 DOI: 10.3389/fphys.2015.00170] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 05/20/2015] [Indexed: 11/14/2022] Open
Abstract
Tissue regeneration and wound healing are severely impaired in diabetes and are associated with poor circulation and dysfunctional blood vessels. Angiotensin II inhibitors are anti-hypertensive drugs used in clinical practice to regulate blood pressure and could affect tissue remodeling. We hypothesize that blocking angiotensin II, using Losartan, could facilitate tissue regeneration in diabetic mice. To this end, we established an experimental model of wound healing in streptozotocin-induced diabetic mice. Our data demonstrated that Losartan accelerates wound repair and normalizes wound stromal responses, having a beneficial role in wounds of diabetic individuals. Our findings highlight a potential therapeutic use of Losartan in improving wound repair in diabetic conditions.
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Affiliation(s)
- Maria Kamber
- Biomedical Sciences Research Centre "Alexander Fleming," Athens, Greece
| | | | - Georgia Rouni
- Biomedical Sciences Research Centre "Alexander Fleming," Athens, Greece
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22
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Caley MP, Martins VL, O'Toole EA. Metalloproteinases and Wound Healing. Adv Wound Care (New Rochelle) 2015; 4:225-234. [PMID: 25945285 DOI: 10.1089/wound.2014.0581] [Citation(s) in RCA: 518] [Impact Index Per Article: 57.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 09/29/2014] [Indexed: 12/15/2022] Open
Abstract
Significance: Matrix metalloproteinases (MMPs) are present in both acute and chronic wounds. They play a pivotal role, with their inhibitors, in regulating extracellular matrix degradation and deposition that is essential for wound reepithelialization. The excess protease activity can lead to a chronic nonhealing wound. The timed expression and activation of MMPs in response to wounding are vital for successful wound healing. MMPs are grouped into eight families and display extensive homology within these families. This homology leads in part to the initial failure of MMP inhibitors in clinical trials and the development of alternative methods for modulating the MMP activity. MMP-knockout mouse models display altered wound healing responses, but these are often subtle phenotypic changes indicating the overlapping MMP substrate specificity and inter-MMP compensation. Recent Advances: Recent research has identified several new MMP modulators, including photodynamic therapy, protease-absorbing dressing, microRNA regulation, signaling molecules, and peptides. Critical Issues: Wound healing requires the controlled activity of MMPs at all stages of the wound healing process. The loss of MMP regulation is a characteristic of chronic wounds and contributes to the failure to heal. Future Directions: Further research into how MMPs are regulated should allow the development of novel treatments for wound healing.
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Affiliation(s)
- Matthew P. Caley
- Blizard Institute, Centre for Cutaneous Research, London, United Kingdom
| | - Vera L.C. Martins
- Blizard Institute, Centre for Cutaneous Research, London, United Kingdom
| | - Edel A. O'Toole
- Blizard Institute, Centre for Cutaneous Research, London, United Kingdom
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Expansion of specialized epidermis induced by hormonal state and mechanical strain. Mech Dev 2015; 136:73-86. [PMID: 25680535 DOI: 10.1016/j.mod.2015.01.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 12/08/2014] [Accepted: 01/28/2015] [Indexed: 11/20/2022]
Abstract
In mammals, some sites of specialized skin such as the palms, soles, and lips grow proportionally with the animal. However, other types of specialized skin such as the nipple and anal/genital region are dramatically altered with changes of reproductive status. The specific cell types that mediate the growth of these sites have not been identified. In the mouse, we observed a dramatic expansion of the specialized epidermis of the nipple, coupled to changes in connective tissue and hair shaft density, which we designate as areola formation. During this process thymidine analog uptake was elevated in the epidermis and hair follicles. Although there were no changes in connective tissue cell proliferation, we did observe an altered expression of extracellular matrix genes. In addition, the fibroblasts of the virgin nipple areola and region showed increased transcript and protein levels for estrogen, progesterone, relaxin, and oxytocin relative to those of ventral skin. To determine the role of pregnancy, lactation hormonal milieu, and localized mechanical strain on areola formation, we created models that separated these stimuli and evaluated changes in gross structure, proliferation and protein expression. While modest increases of epidermal proliferation and remodeling of connective tissue occurred as a result of individual stimuli, areola formation required exposure to pregnancy hormones, as well as mechanical strain.
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Criss CN, Gao Y, De Silva G, Yang J, Anderson JM, Novitsky YW, Soltanian H, Rosen MJ. The effects of Losartan on abdominal wall fascial healing. Hernia 2014; 19:645-50. [DOI: 10.1007/s10029-014-1241-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Accepted: 03/22/2014] [Indexed: 12/13/2022]
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